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dimulka [17.4K]
3 years ago
7

What is the solution for the equation 5/3b^3-2b-5=2/b3-2

Mathematics
2 answers:
irinina [24]3 years ago
7 0

Answer:

Option C is correct.

Step-by-step explanation:

Given Equation:

\frac{5}{3b^3-2b^2-5}=\frac{2}{b^3-2}

To find: Solution of the Equation.

Consider,

5(b^3-2)=2(3b^3-2b^2-5)

5b^3-10=6b^3-4b^2-10

6b^3-5b^3-4b^2+10-10=0

b^3-4b^2=0

b^2(b-4)=0

b² = 0   ⇒ b = 0

b - 4 = 0 ⇒ b = 4

Therefore, Option C is correct.

kondaur [170]3 years ago
4 0

Answer:

c

Step-by-step explanation:

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lbvjy [14]
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8 0
3 years ago
Dentify all of the following solutions of square root of x plus 10 end root minus 4 equals x
Mrac [35]

Answer:

x = -1.

Step-by-step explanation:

√(x + 10) - 4 = x

√(x + 10) = x + 4

Squaring both sides:

x + 10 = x^2 + 8x + 16

x^2 + 8x - x + 6 = 0

x^2 + 7x + 6 = 0

(x + 6)(x + 1) = 0

<u>x = -6, -1.</u>

Check for any extraneous roots:

√(x + 10) - 4 = x

<u>Try x = -6:</u>

√(-6 + 10) - 4 = 2 - 4 = -2.

but we found x = -6  , so -6 is not a root.

<u>Try x = -1</u>:

√(-1 + 10) - 4 = 3 - 4 = -1. So x = -1 is a root.

3 0
4 years ago
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1. What is the value of the expression 8^–2?
geniusboy [140]
1. B
2. D
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4 0
4 years ago
Rational number equivalent to 1.28
tatyana61 [14]

Answer:

The 1 represents a whole number, and 28/99= .28282828 (the repeating decimal wanted)

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Step-by-step explanation:

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3 years ago
If you had this as your answer, would you add the terms, or keep them apart <br> 15x + 5<br> HURRYYY
gayaneshka [121]

Answer:

5(3x+1)

Step-by-step explanation:

Graph for 15*​x+​5

More info

How to solve your question

Your question is

1

5

+

5

15x+5

15x+5

Grouping

1

Factor out common coefficient factor

1

5

+

5

{\color{#c92786}{15x+5}}

15x+5

5

(

3

+

1

)

{\color{#c92786}{5(3x+1)}}

5(3x+1)

Solution

5

(

3

+

1

)

8 0
3 years ago
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